Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS7201441 B2
Publication typeGrant
Application numberUS 10/738,485
Publication dateApr 10, 2007
Filing dateDec 17, 2003
Priority dateDec 18, 2002
Fee statusPaid
Also published asCN1513699A, CN100450822C, DE10259648A1, DE10259648B4, US7475938, US20040164594, US20070176470
Publication number10738485, 738485, US 7201441 B2, US 7201441B2, US-B2-7201441, US7201441 B2, US7201441B2
InventorsStefan Stoewe, Rainer Spee
Original AssigneeW.E.T. Automotive Systems, Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air conditioned seat and air conditioning apparatus for a ventilated seat
US 7201441 B2
Abstract
An air conditioned seat with a padded seat surface (4) and a padded backrest (8) and with a fan (16) arranged beneath the seat surface (4). The fan (16) is connected to an air distribution apparatus (20, 22) in the seat, and includes a flow region (31) that is open to the environment. The flow region (31) is located substantially on the side of the fan (16) facing the seat surface (4). The fan inlet (30) is further environmentally protected by a diffuser (36) located in the flow region (31) and forming a slit opening (40) between a top edge (38) of the diffuser (36) and an underside (28) of the seat.
Images(3)
Previous page
Next page
Claims(22)
1. An air conditioned seat comprising:
a padded seat with one or more air ducts within a seat cushion and with upholstery covering the seat cushion; and
a fan arranged beneath the seat, the fan including an air intake opening, the fan being connected to an air distribution apparatus through the one or more air ducts, where the air distribution apparatus is located beneath the upholstery covering and includes a flow region that is open to the environment, wherein the air intake opening is directed toward an underside of the seat.
2. An air conditioned seat according to claim 1, wherein the fan is a radial fan.
3. An air conditioned seat according to claim 2, wherein the fan has an outlet opening aimed approximately parallel to the underside of the seat.
4. An air conditioned seat according to claim 3 comprising a flexible bellows located between the outlet opening of the fan and at least one air duct in the seat.
5. An air conditioned seat according to claim 2, wherein the radial fan is anchored in a seat frame.
6. An air conditioned seat according to claim 2 comprising a slit opening located in the flow region to guide the air that is drawn into the fan.
7. An air conditioned seat according to claim 6, comprising a diffuser.
8. An air conditioned seat according to claim 7, wherein the slit opening is provided between a top edge of the diffuser and the underside of the seat.
9. An air conditioned seat according to claim 8 comprising a dust or particle filter arranged between the slit opening and the fan.
10. An air conditioned seat according to claim 2, wherein a housing of the radial fan is hermetically sealed with respect to the environment.
11. An air conditioned seat according to claim 1, wherein the seat is a vehicle seat or an airplane seat.
12. An air conditioned seat comprising:
a seating cushion with at least one air duct within the seating cushion and an air distribution apparatus comprising an air distribution structure along each of an underside and a top side of the seating cushion, wherein the at least one air duct connects the air distribution structures, and
a fan arranged beneath the seating cushion, the fan being connected to the air distribution apparatus in the seating cushion, wherein an air intake opening of the fan is directed toward an underside of the seating cushion.
13. An air conditioned seat according to claim 12 wherein the air distribution apparatus comprises a flow region open to the environment.
14. An air conditioned seat according to claim 12 wherein the fan has an outlet opening aimed approximately parallel to the underside of the seating cushion.
15. An air conditioned seat according to claim 14 comprising a flexible bellows located between the outlet opening of the fan and an inlet to the air distribution apparatus.
16. An air conditioned seat according to claim 12 comprising a slit opening located in the flow region to guide air that is drawn into the fan.
17. An air conditioned seat according to claim 16 comprising a diffuser.
18. An air conditioned seat according to claim 17 wherein the slit opening is provided between a top edge of the diffuser and the underside of the seating cushion.
19. An air conditioned seat according to claim 18 comprising a dust or particle filter arranged between the slit opening and the fan.
20. An air conditioned seat according to claim 12 comprising a second fan arranged in a backrest.
21. An air conditioned seat according to claim 12, wherein the fan is a radial fan.
22. An air conditioned seat according to claim 21 wherein the radial fan is anchored in a seat frame.
Description
TECHNICAL FIELD

The invention relates to a vehicle seat and, more particularly, concerns an air conditioned seat with a padded seat surface and backrest, and a fan arranged beneath the seat surface.

BACKGROUND OF THE INVENTION

Air conditioned seats are known from the automotive industry and aircraft construction. A customary arrangement consists of a seat provided with at least one device for the supply of air whose seat and backrest surfaces are each provided with air outlets or with an air-permeable fabric structure. The air supply device typically includes an axial flow fan arranged in the seat surface and one in the backrest surface, each of which draws in air from the environment and directs it through air ducts in the seat to the surfaces facing a person sitting in the seat.

U.S. Pat. No. 6,048,024 describes a ventilated seat that is equipped with a fan device beneath a seat surface and one in a backrest surface. Each of the fan devices draws air out of the seat through openings in the seat and backrest surfaces and discharges it to the environment. Both fan devices are designed as axial flow fans or as axial/radial flow fans.

A ventilation device for an air-conditioned seat is additionally known from DE 101 16 45 A1. In that case, an axial flow fan is provided on an underside of a seat surface that draws air from the environment and conveys it through channels in the seat cushion to air outlets of a seat surface.

The axial flow fan, in particular, that is located in the seat surface, generally projects downward from the underside of the seat and thus into a footwell of a rear seat passenger sitting behind the air conditioned seat. This axial flow fan must be provided with an additional cover to protect it from damage. Thus, there exists a need for an improved fan arrangement within a vehicle seat to make available an air supply device for an air conditioned seat, or an air conditioning apparatus for a ventilated seat, that is robust and reliably protected all around, and avoids the disadvantages of the prior art.

SUMMARY OF THE INVENTION

The present invention provides an air conditioned seat with a padded seat surface and padded backrest, with a fan arranged beneath the seat surface. The fan is connected to an air distribution apparatus in the seat and has a flow region that is open to the environment. The flow region is located substantially on the side of the fan facing the seat surface.

The disclosed embodiment is advantageous in that the fan drive is protected against the penetration of splashes and muddy water from the footwell of a rear seat passenger and also against damage from the rear seat passenger's feet. Moreover, the inlet opening of the fan is not visible and is tamperproof.

One embodiment of the invention provides a flexible bellows between the outlet opening of the radial flow fan and at least one air duct in the seat, permitting relative motion between the cushion and the fan caused by a person sitting or moving during vehicle operation. The underside of the seat can execute gentle vertical and horizontal motions while the fan itself preferably is rigidly anchored to a seat frame. At the same time, the flexible bellows serves to redirect the airflow by approximately 90 degrees from a horizontal direction to a vertical upward direction. The bellows preferably directs the flow of air into an air distribution structure in the seat surface, which may be connected by air ducts to air outlets or an air-permeable fabric of the seat surface if desired.

Another embodiment of the invention provides for a diffuser to be arranged around the air intake opening of the radial fan to guide the air that is drawn in. Between a top edge of the diffuser and the underside of the seat, there can be arranged a slit opening that can have a width of approximately 10 mm. This air guide improves the protection of the fan against blockage by objects or body parts penetrating from the footwell, and thus simultaneously provides very effective tamper-proofing from children at play or debris. The diffuser generally improves the protection of the fan drive from damage and from the penetration of water or moisture. Moreover, improved protection from penetration of large dust and dirt particles can also be achieved by this means, since the particles are substantially prevented from reaching the fan drive by a labyrinthine air guide due to the slit opening.

If desired, a dust or particle filter or a fine screen may be arranged between the slit opening and the air intake opening of the radial fan; this further protects the fan drive from the entry of foreign particles. To improve mechanical protection of the fan, its housing can be hermetically sealed with respect to the environment. The slit opening comprises the only opening to the outside, since the outlet opening is closed to the outside by means of the flexible bellows. The diffuser can also be rigidly connected to the housing which is sealed to the outside. The housing itself is firmly anchored to the seat and has a relatively robust structure for mechanical protection of the fan, protecting it from external damage.

Another alternative embodiment provides for an identical type radial fan to also be arranged in the backrest of the seat, which however preferably has an air guide that is covered with respect to the outside. Due to its visibility and the possibility of contact by a rear seat passenger, the backrest should in this case have a cover such that the air intake opening is arranged at a lower edge of the backrest facing the floor, for example. Moreover, a radial/axial fan may be used instead of a purely radial fan.

The air conditioned seat in accordance with the invention may be a vehicle seat or an airplane seat, for example.

The use of a radial fan as opposed to an axial fan makes possible a higher airflow, since a radial fan typically has a fan characteristic with a steeper pressure curve. Greater obstruction of the airflow system, for example by heavy passengers or dirty air ducts, causes less reduction in the airflow volume, and hence in system performance, with a radial fan.

The present invention itself, together with further objects and attendant advantages, will be best understood by reference to the following detailed description, taken in conjunction with the accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of this invention reference should now be had to the embodiments illustrated in greater detail in the accompanying figures and described below by way of examples of the invention wherein:

FIG. 1 is a schematic representation of an air conditioned seat according to one embodiment of the present invention, and

FIG. 2 is an air conditioning apparatus according to the invention for a ventilated seat.

DESCRIPTION OF THE PREFERRED EMBODIMENT(S)

In the following description, various operating parameters and components are disclosed for two exemplary embodiments. These specific parameters and components are included as examples and are not meant to be limiting.

FIG. 1 shows a schematic representation of an air conditioned seat 2 in accordance with one embodiment of the invention. The seat 2 includes an approximately horizontal seat surface 4 and a backrest 8 that is attached thereto in either a fixed or rotatable manner. For improved seating comfort, the seat surface 4 has a resilient seat cushion 6 and the backrest 8 has a resilient backrest cushion 10. In particular, the seat cushion 6 and backrest cushion 10 may be made of foam or the like. If desired, a spring core may also be provided in each of these. An underside 28 of the seat surface 4 is anchored to a floor—possibly in a sliding manner—by means of a seat frame by known methods and arrangements. Such a seat 2 in accordance with the invention may be used for example in a vehicle, such as a motor vehicle, or also in an airplane.

Provided on the rear side within the backrest 8 is an axial fan 14, which draws air from the environment and conveys it through a flexible bellows 34 to an air distribution structure 22. From there, the air is conveyed through air ducts 20 to regions near the surface of the backrest 8, where further regions may, for example, be provided with air distribution structures 22 through which the air is conveyed to air outlets 24 or to an air-permeable fabric 26. In the case of leather upholstery, in particular, air outlets 24 are typically used. Conversely, in the case of fabric upholstery, an air-permeable fabric 26 through which the air can pass to the outside is used on the surface of the backrest 8.

A similar air distribution structure 22 is provided in the seat surface 4. Here, too, several air ducts 20 are arranged within the seat cushion 6, through which air that has been drawn in by an air supply device is conveyed to the surface upon which a person can sit. In regions near the top of the seat surface 4, air distribution structures 22 are provided, each of which communicates with an air duct 20. Here, too, the air can pass to the outside, again through air outlets 24 or through an air-permeable fabric 26.

An air distribution structure 22 on the underside 28 of the seat surface 4 communicates at one upper surface 21 with the air ducts 20. At its lower surface 23, it opens into a flexible bellows 34, which establishes an air-carrying connection to an outlet opening 32 of the air supply device. In the example embodiment shown, the device to supply air to the seat surface 4 is a radial flow fan 16 with an outlet direction 32 approximately parallel to the top of the seat surface 4 and with an air intake opening 30 directed essentially toward the underside 28 of the seat surface 4. Thus, the flow region 31 is located between the fan 16 and the underside 28 of the seat surface 4.

Arranged around the air intake opening 30 is a diffuser 36 that is connected to the otherwise sealed housing 18 of the radial flow fan 16. The diffuser 36 opens out upward in a conical shape from the air intake opening 30 and provides a slit opening 40 between a top edge 38 and the underside 28 of the seat surface 4. The slit opening 40 preferably has a width that prevents the passage of relatively large particles. For example, the slit can be on the order of approximately 10 mm wide. If desired, the slit opening 40 may be equipped with a dust or particle filter 42, for example in the form of a fine-meshed fabric or the like (see FIG. 2). The housing 18 is preferably hermetically sealed and fastened to a seat pan or the seat frame (not shown), and thus has a secure anchoring to the seat 2. The bellows 34 permits motion of the outlet opening 32 relative to the air distribution structure 20 on the underside 28 of the seat surface 4.

FIG. 2 shows a schematic representation of an air conditioning apparatus according to an embodiment of the invention for a ventilated seat 2. The air conditioning apparatus corresponds essentially to the arrangement already described with regard to FIG. 1. Consequently, parts that are the same as in FIG. 1 are labeled with the same reference number and for the most part are not explained again. Unlike the arrangement in FIG. 1, a filter 42 or a screen that fills the slit opening 40 is provided between the top edge 38 of the diffuser 36 and the underside 28 of the seat surface 4. The diffuser 36 may have different sizes, as is indicated in FIGS. 1 and 2. FIG. 1 shows a relatively large diffuser 36, which extends over most of the underside 28 of the seat surface 4. FIG. 2 shows a smaller diffuser 36, which has roughly the same size as the housing 18 of the radial fan 16. Because of the arrangement according to the invention with the narrow slit opening 40 facing the underside 28 of the seat 2, however, a filter 42 or screen can be omitted, as a general rule.

The arrangement shown of the radial fan 16 in the air conditioned seat 2 has many advantages. The closed and mechanically robust housing 18 and the sturdy diffuser 36 connected thereto represent reliable protection from damage due to external influences. Since the radial fan is located in the footwell of a passenger sitting behind the seat 2, it can be damaged accidentally if its construction is not sufficiently sturdy. This is largely prevented by the robust design and the firm anchoring to the seat frame.

Furthermore, the arrangement of the slit opening directly beneath the underside 28 of the seat 2 provides protection from tampering and also represents a splashguard to prevent the penetration of moisture. In addition, protection from the penetration of particles and, in certain circumstances, from the penetration of dust can be assured. As a result of the air intake from above, a labyrinth-like air guide is produced that reliably prevents the penetration of particles, water or other environmental debris. The narrow width of the slit opening of approximately 10 mm, when the seat is occupied, represents protection against unintentional intervention. Moreover, protection against blockage is assured by the arrangement, since objects cannot reach the radial fan and tampering, for example by children at play, is nearly impossible, making the fan system potentially safer.

Preferably, ambient air is drawn in by the fan and blown into the seat. The fan can also be operated in the reverse direction, however. This would cause air to be drawn out from the seat and blown out beneath the seat. The arrangement described would distribute the exhaust airflow well. Objectionable, concentrated airflows would thus be avoided.

While the invention has been described in connection with one or more embodiments, it is to be understood that the specific mechanisms and techniques which have been described are merely illustrative of the principles of the invention, numerous modifications may be made to the methods and apparatus described without departing from the spirit and scope of the invention as defined by the appended claims.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US374424Dec 6, 1887 Opera-chair
US390154Oct 14, 1887Sep 25, 1888 beach
US1370832Jul 9, 1920Mar 8, 1921Mollberg BrorChair with ventilating device for theaters, biographs, and the like
US1439681Nov 22, 1921Dec 26, 1922Emma Alkire LuVentilating system for vehicles
US1475912Aug 17, 1922Nov 27, 1923John R WilliamsAutomobile seat warmer and cooler
US1514329Jul 26, 1923Nov 4, 1924Metcalf Walter NVentilating system for vehicles
US1537460Oct 7, 1924May 12, 1925James D CampbellCooling-fan attachment for cushion seats
US1541213Dec 11, 1922Jun 9, 1925Harley Erskine PSeat cushion
US1593066Jan 6, 1925Jul 20, 1926Gaston George HSelf-cooling seat
US1664636Sep 27, 1926Apr 3, 1928Mayer AugustineCooling device
US1837515Aug 1, 1928Dec 22, 1931Bachrach AlbertFurniture
US1936960Feb 6, 1933Nov 28, 1933Hite Bowman AbramHealth mattress
US2022959Jan 18, 1934Dec 3, 1935Roy F GordonSeat ventilating and cooling device for automobiles
US2103553Sep 15, 1934Dec 28, 1937Reynolds Joseph HSelf-cooling bed and couch cushion
US2158801Jan 31, 1936May 16, 1939Charles J PettersonVentilated seat for vehicles
US2336089Jan 31, 1941Dec 7, 1943Gen Motors CorpRefrigerating apparatus
US2493303Nov 13, 1945Jan 3, 1950Russell H McculloughOpera chair
US2544506Jul 12, 1947Mar 6, 1951Semen KronhausTemperature conditioned furniture
US2703134Sep 19, 1952Mar 1, 1955George L MossorVentilated barber chair
US2749906Feb 8, 1955Jun 12, 1956 oxconnor z
US2758532Aug 21, 1952Aug 14, 1956Raymond H AweVentilated back rest for a vehicle seat
US2782834 *May 27, 1955Feb 26, 1957Vigo Benny RichardAir-conditioned furniture article
US2791956Dec 24, 1953May 14, 1957Maurice C GuestVentilated automobile seat pad
US2826135Apr 21, 1954Mar 11, 1958American Motors CorpSeat construction
US2912832May 31, 1956Nov 17, 1959Int Harvester CoCooling apparatus for vehicle seats
US2931286Sep 13, 1956Apr 5, 1960Sr Walter L FryFluid conduit article of manufacture and combination article of manufacture
US2976700May 14, 1958Mar 28, 1961Jackson William LSeat structure
US2978972Nov 3, 1958Apr 11, 1961Wesley F HakeVentilating and cooling system for automobile seats
US2992604Jun 9, 1958Jul 18, 1961TrotmanForced air under body ventilating device
US2992605Jun 16, 1958Jul 18, 1961TrotmanAppliance for forcing air circulation under supported bodies
US3030145Aug 26, 1953Apr 17, 1962Kushion Kooler CorpVentilating seat pad
US3101037May 29, 1961Aug 20, 1963Don A TaylorDetachable ventilating seat cover for automobile seats
US3101660Apr 3, 1961Aug 27, 1963Don A TaylorVentilating hood for seat cushions
US3127931May 4, 1959Apr 7, 1964Gen Motors CorpHeating and cooling employing aerated car seats
US3131967Aug 28, 1961May 5, 1964Emil J Paidar CompanyAir cooled barber chair
US3136577Aug 2, 1961Jun 9, 1964Dorothy S ClarkSeat temperature regulator
US3137523Sep 20, 1963Jun 16, 1964Frank KarnerAir conditioned seat
US3162489Aug 31, 1962Dec 22, 1964Phillips Petroleum CoForced air under-body ventilating pad devices
US3209380Dec 31, 1964Oct 5, 1965Watsky BenjaminRigid mattress structure
US3486177Sep 20, 1966Dec 30, 1969Califoam Corp Of AmericaCushions
US3529310Apr 4, 1968Sep 22, 1970Giuseppe Olmo Superflexite SpaProcess to ventilate stuffings of cellular material and stuffing actuated with said process
US3550523May 12, 1969Dec 29, 1970Segal IrvingSeat construction for automotive air conditioning
US3552133Feb 20, 1968Jan 5, 1971Lukomsky Sergei MeerovichHeating and cooling unit
US3628829Jul 8, 1969Dec 21, 1971Heilig Morton LExperience theater
US3638255Oct 2, 1969Feb 1, 1972Eugene L SterrettSeat cushion or pillow
US3653589Jul 27, 1970Apr 4, 1972Carrier CorpAir conditioning system
US3653590Jul 27, 1970Apr 4, 1972Carrier CorpAir conditioning apparatus
US3681797Jun 29, 1970Aug 8, 1972Jacob MessnerCover materials for body-supporting articles
US3684170Jul 27, 1970Aug 15, 1972Carrier CorpAir conditioning apparatus
US3732944Apr 12, 1971May 15, 1973Menasco Mfg CoAutomatic vacuum restraint apparatus
US3736022Jul 26, 1971May 29, 1973Oil Products CoMolded seat cushion with cast skin and insert receiving recess
US3738702Mar 15, 1972Jun 12, 1973Gen Motors CorpMeans for cooling and heating a seat structure
US3757366Aug 18, 1971Sep 11, 1973W SacherCushion for preventing and alleviating bedsores
US3770318Jul 28, 1972Nov 6, 1973Storey Brothers & CoVehicle seats
US3778851Feb 24, 1972Dec 18, 1973Haworth Air Conditioning LtdMattress
US3948246Jul 17, 1974Apr 6, 1976Jenkins John FHeater for sports benches
US4002108Aug 27, 1975Jan 11, 1977Mordeki DroriVentilated back-seat rest particularly for automotive vehicles
US4043544Mar 8, 1976Aug 23, 1977Walter IsmerReinforced and ventilated seats
US4044221May 15, 1975Aug 23, 1977Kommanditgesellschaft Warmetechnik B. Ruthenberg GmbhFlexible heating element for heating seats, in particular motor vehicle seats, couches, berths or the like
US4060276Nov 22, 1976Nov 29, 1977Lindsay Robert ACooling seat
US4065936Jun 16, 1976Jan 3, 1978Borg-Warner CorporationCounter-flow thermoelectric heat pump with discrete sections
US4072344Oct 14, 1976Feb 7, 1978Li Chou HConvectively air-ventilated furniture
US4141585Oct 19, 1977Feb 27, 1979Wynona BlackmanFolding cooling lounge chair
US4175297Feb 3, 1978Nov 27, 1979Richardson Robert HInflatable pillow support
US4245149Apr 10, 1979Jan 13, 1981Fairlie Ian FHeating system for chairs
US4259896 *Jan 30, 1980Apr 7, 1981Nissan Motor Company, LimitedApparatus to control the air flow in an automobile
US4268272May 22, 1979May 19, 1981Eiichi ItoExothermic composition and warming bag containing the same
US4335725Aug 15, 1980Jun 22, 1982Geldmacher Barbara JTherapeutic heat cushion
US4379352Mar 31, 1980Apr 12, 1983Bayerische Motoren Werke A.G.Motor vehicle seat and process relating thereto
US4391009Oct 17, 1980Jul 5, 1983Huntleigh Medical Ltd.Ventilated body support
US4413857Nov 3, 1980Nov 8, 1983Nissan Motor Co., Ltd.Seat cover
US4509792Apr 12, 1983Apr 9, 1985Wang Yen HsiungVentilated seat
US4563387Jun 27, 1984Jan 7, 1986Takagi Chemicals, Inc.Cushioning material
US4572430Jun 27, 1984Feb 25, 1986Takagi Chemicals, Inc.Air conditioner for vehicular seat
US4589656Nov 7, 1984May 20, 1986Nautilus Sports/Medical Industries, Inc.Aerobic exercise device for increased user comfort
US4665707Aug 26, 1985May 19, 1987Hamilton A CProtection system for electronic apparatus
US4671567Jul 3, 1986Jun 9, 1987The Jasper CorporationUpholstered clean room seat
US4685727Mar 26, 1986Aug 11, 1987Keiper Recaro Gmbh & Co.Vehicle seat
US4712832Jun 24, 1986Dec 15, 1987Adriano AntoliniCover, particularly for vehicle seats
US4729598Mar 20, 1987Mar 8, 1988Hess Jack HPatient chair system
US4777802Apr 23, 1987Oct 18, 1988Steve FeherBlanket assembly and selectively adjustable apparatus for providing heated or cooled air thereto
US4847933May 19, 1988Jul 18, 1989Bedford Peter HSupport pad for nonambulatory persons
US4853992Jul 22, 1988Aug 8, 1989Kaung M YuAir cooled/heated seat cushion
US4866800Mar 3, 1989Sep 19, 1989Bedford Peter HSupport pad for nonambulatory persons
US4905475Apr 27, 1989Mar 6, 1990Donald TuomiPersonal comfort conditioner
US4923248Nov 17, 1988May 8, 1990Steve FeherCooling and heating seat pad construction
US4946220Aug 9, 1988Aug 7, 1990David WyonVentilated chair or similar device
US4964674Mar 7, 1989Oct 23, 1990I.G. Bauerhin GmbhHeated seat
US4981324Oct 13, 1989Jan 1, 1991Law Ignace KVentilated back-seat support pad particularly for vehicles
US4997230Jan 30, 1990Mar 5, 1991Samuel SpitalnickAir conditioned cushion covers
US5002336Oct 18, 1989Mar 26, 1991Steve FeherSelectively cooled or heated seat and backrest construction
US5004294Jun 28, 1989Apr 2, 1991Lin Peir KuenBuilt-up type air-conditioning cushion assembly
US5016302Dec 13, 1989May 21, 1991Yu Kaung MMotive air seat cushion
US5076643Aug 20, 1990Dec 31, 1991Lear Seating CorporationLumbar support
US5102189Dec 28, 1990Apr 7, 1992Tachi-S Co., Ltd.Ventilated seat
US5106161Aug 27, 1990Apr 21, 1992Grammer AgCushion portion for a seat
US5117638Mar 14, 1991Jun 2, 1992Steve FeherSelectively cooled or heated seat construction and apparatus for providing temperature conditioned fluid and method therefor
US5138851Dec 14, 1990Aug 18, 1992Golden Empire Trading Co., Inc.Active seat cooling system
US5160517Feb 20, 1992Nov 3, 1992Hicks Richard ESystem for purifying air in a room
US5211697Sep 7, 1990May 18, 1993Kurt KienleinUpper seat part
US5226188Jun 26, 1992Jul 13, 1993Liou Yaw TyngVentilated foam cushion
US6003950 *Sep 12, 1996Dec 21, 1999Walinov AbDevice for ventilating vehicle chairs
US6048024 *Sep 12, 1996Apr 11, 2000Walinov AbFan device contained in a ventilated vehicle chair
US6064641 *May 11, 1998May 16, 2000U.S. Philips CorporationFocusing more than 30 depths from an aplanatic point of a plano-convex lens
US6189966 *Feb 3, 1999Feb 20, 2001Daimlerchrysler AgVehicle seat
US6478369 *Jul 31, 2000Nov 12, 2002Denso CorporationSeat air conditioner having mechanism following passenger seat
US6629724 *Jan 5, 2001Oct 7, 2003Johnson Controls Technology CompanyVentilated seat
Non-Patent Citations
Reference
1Automotive Heated Seats-Heated Steering Wheels, IGB Automotive Ltd., received by Assignee W.E.T. Automotive Systems, May 2003.
2Automotive Seat Heating Systems, Bauerhin International, received by Assignee W.E.T. Automotive Systems, May 2002.
3Excerpt from website http://www.icar.com/html<SUB>-</SUB>pages/about<SUB>-</SUB>icar/current<SUB>-</SUB>events<SUB>-</SUB>news/advantage/advantageI-Car Advantage Online.
4Excerpt from website http://www.seatcomfort.com/semashow1.htm, Specializing in Seat Ventilation and Heating Systems, Seat Comfort Systems Unveils 3 New Seat Heater Products.
5Excerpt from website http://www.seatcomfort.com/ventilation.htm, Specializing in Seat Ventilation and Heating Systems, Ventilation.
6GMT 830 Heating & Ventilation System, IGB Automotive Ltd., received by Assignee W.E.T. Automotive Systems, Jun. 2003.
7International Search Report for Application Ser. No. PCT/US03/19929, Oct. 10, 2003.
8Komfortabel bei jeder Temperatur.
9Seat Having Systems, Kongsberg Automotive, believed to be from websitehttp://www.kongsberg-automotive.no/.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7475464May 3, 2006Jan 13, 2009Amerigon IncorporatedClimate controlled seat
US7587901Jan 31, 2005Sep 15, 2009Amerigon IncorporatedControl system for thermal module in vehicle
US7591507Apr 13, 2006Sep 22, 2009Amerigon IncorporatedTie strap for climate controlled seat
US7640753 *Jan 10, 2006Jan 5, 2010Delphi Technologies, Inc.Control method for thermal regulation of a vehicle seat
US7640754Jan 15, 2007Jan 5, 2010Amerigon IncorporatedInsert duct piece for thermal electric module
US7665803Nov 1, 2007Feb 23, 2010Amerigon IncorporatedChair with air conditioning device
US7708338Oct 10, 2007May 4, 2010Amerigon IncorporatedVentilation system for seat
US7753440 *Nov 2, 2007Jul 13, 2010Catem Gmbh & Co. KgFan module for a vehicle seat and motor vehicle seat with noise insulation
US7828050 *Aug 26, 2005Nov 9, 2010Honda Motor Co., Ltd.Vehicle seat air-conditioner and vehicle temperature controller
US7963594 *Feb 22, 2010Jun 21, 2011Amerigon IncorporatedChair with air conditioning device
US7966835Sep 14, 2009Jun 28, 2011Amerigon IncorporatedThermal module for climate-controlled seat assemblies
US8143554Mar 14, 2008Mar 27, 2012Amerigon IncorporatedAir warmer
US8256236Feb 2, 2009Sep 4, 2012Gentherm IncorporatedCondensation and humidity sensors for thermoelectric devices
US8393162 *Aug 23, 2007Mar 12, 2013Sang-ho ChungTemperature control system for seat of vehicles
US8434314Nov 8, 2010May 7, 2013Gentherm IncorporatedClimate control systems and methods
US8516842Jun 27, 2011Aug 27, 2013Gentherm IncorporatedThermal conditioning system for climate-controlled seat assemblies
US8539624Nov 17, 2006Sep 24, 2013Gentherm IncorporatedStructure based fluid distribution system
US8641086 *Sep 13, 2012Feb 4, 2014Toyoda Gosei Co., Ltd.Seat cushion airbag device
US20100081369 *Sep 30, 2008Apr 1, 2010Space David RPersonal ventilation in an aircraft environment
US20100300644 *Aug 23, 2007Dec 2, 2010Chung Sang-HoTemperature control system for seat of vehicles
US20100327637 *Dec 3, 2008Dec 30, 2010W.E.T. Automotive Systems Agseat conditioning module and method
US20110226461 *Mar 14, 2011Sep 22, 2011Denso CorporationVehicular seat air-conditioning system
US20130082457 *Sep 13, 2012Apr 4, 2013Toyoda Gosei Co., Ltd.Seat cushion airbag device
USRE44272Feb 20, 2009Jun 11, 2013Gentherm IncorporatedThermoelectric heat exchanger
Classifications
U.S. Classification297/180.14, 297/452.46, 297/180.13, 297/452.42, 297/180.1
International ClassificationB60N2/44, A47C7/74, A47C13/00, B60N2/56
Cooperative ClassificationB60N2/5657, B60N2/5635
European ClassificationB60N2/56C4F
Legal Events
DateCodeEventDescription
Oct 4, 2010FPAYFee payment
Year of fee payment: 4